读取JSON问题文件-JAVA游戏

Question

我有以下带有问题和答案选项的JSON文件。还有我尝试打印问题的代码。

{
  "GameName": "millionaire game",
  "level": 1,
  "questions": [
    {
      "question1": "What is the minimum of players in a footbal game?",
      "options1": [
        8,
        10,
        9,
        7
      ],
      "answer1": "7"
    },
    {
      "question2": "Who scored maximum goal footbal game?",
      "options2": [
        "Jhon",
        "Pitty",
        "Richard",
        "Mike"
      ],
      "answer2": "Mike"
    },
    {
      "question3": "What is the maximum of players in a footbal game?",
      "options3": [
        8,
        10,
        9,
        7
      ],
      "answer3": "7"
    }
  ]
}

    import java.io.BufferedReader;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.IOException;
import java.util.InputMismatchException;
import java.util.Scanner;
import java.util.Random;

import java.nio.file.Files;
import java.nio.file.Paths;
import org.json.*;

public class readJson {

    public static void main(String[] args) throws JSONException {

        String first = "jsonPerguntas2.json";

        try {
            String content = new String((Files.readAllBytes(Paths.get(first))));     
            JSONObject o = new JSONObject(content);
            JSONArray firstQuestion = o.getJSONArray("question1");

            //System.out.println(conteudo);

            for (int i=0; i<firstQuestion.length(); i++){
                System.out.println(firstQuestion.get(i));
            }

        } catch (IOException e) {
        }  
    }  
}

我有此代码可以读取文件。但是它总是返回相同的错误：

Exception in thread "main" org.json.JSONException: JSONObject["question1"] not found.
	at org.json.JSONObject.get(JSONObject.java:454)
	at org.json.JSONObject.getJSONArray(JSONObject.java:535)
	at TrabPraticoJava.TesteLerJson.main(TesteLerJson.java:37)
C:\Users\José Dias\Documents\NetBeansProjects\TrabPraticoJava\nbproject\build-impl.xml:1341: The following error occurred while executing this line:
C:\Users\José Dias\Documents\NetBeansProjects\TrabPraticoJava\nbproject\build-impl.xml:936: Java returned: 1
BUILD FAILED (total time: 0 seconds)

如果我将JSONArray firstQuestion = o.getJSONArray("question1");行更改为JSONArray firstQuestion = o.getJSONArray("questions");，它实际上会打印所有文件，但我想单独打印问题。

有人可以帮我吗？在此先感谢

Answer 1

尝试一下：

JSONArray questions = o.getJSONArray("questions");
  for (int i = 0; i < questions.length(); i++) {
    JSONObject question = recs.getJSONObject(i);
    System.out.println(question.getInt("question"+i+1));
  }